What is immutable about Sherlock Holmes? He favors reason over emotion, but actually underneath that, there is a lot of emotion going on. You can't suddenly make him ordinary because he would hate that. He's not suddenly going to be somebody else.
Steven MoffatCome on, Rory! It isn't rocket science, it's just quantum physics! -The Doctor (Matt Smith)
Steven MoffatYou should always waste time when you don't have any. Time is not the boss of you. Rule 408.
Steven MoffatThe Doctor: [aiming gun at the ceiling] Didn't anyone ever tell you? There's one thing you never put in a trap if you're smart. If you value your continued existence, if you have any plans about seeing tomorrow, there's one thing you never, ever put in a trap. Angel Bob: And what would that be, sir? The Doctor: Me. [fires]
Steven Moffat